marginal hands late in tournaments

[bugstud]

so I have an above average hand in a low limit UB rebuy tourney, 50 left of 225 or so. I have 20k with average around 14k, 3 stacks larger than mine including 2 tourny leaders at 40k+. How do you guys play KQo and 88 in these types of situations? I raised with them and got reraised all in such small amounts in 2 cases it's correct to call, and then I had 9k Utg at 600/1200 blinds with it, went allin and lost to AQ. Part tilt, part desperation I guess. I should have had a tight image but had zero respect on my raises.